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Maintenance
Before performing any type of maintenance on the Model 250, always disconnect the unit from
power and follow all safety precautions.
Belt Adjustment
Remove the belt guard cover. The motor is mounted on a slotted frame. Loosen the mounting
bolts and adjust the motor for proper belt tension. This is determined by applying thumb pressure
on the belt causing a slight bow on slack side. This should be no more than ½”. Important: The belt
should be checked and tightened if required after the first several days of operation. After that it
should be checked monthly.
Lubrication
Grease fittings can be found on both rotor bearings. The bearings should be greased twice a year
using Gulflex A multi-purpose or equivalent grease.
Knives
For full efficiency, knives should be sharpened from two to five times per year, depending upon
use. If for example, your knives require sharpening after three months of operation, your
sharpening schedule should be every three months. It is highly recommended that a spare set of
knives be available for your disintegrator to eliminate down-time. Knives should not go beyond
50-100 hours of operation without knife sharpening.
Replacing Knives (See diagram on page 11)
1.
Be sure that the power cord has been unplugged from the wall receptacle.
2.
Remove the top cover screws to access the knives.
3.
Prior to removing or replacing the rotor knives, back off the bed knife adjusting screws.
Cover the edge of each knife with a heavy gauze tape such as scotch filament or cloth tape.
Remove the rotor knives first and be sure to remove all rotor and bed knives prior to
replacing any of the knives.
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